Calero is an award-winning writer and artist who helped developed "X-Men Noir" for Marvel Comics, as well as having worked on DC and Dark Horse Comics. 

Calero has also worked on entertainment projects for CBS Films and Weed Road Pictures and famed horror writer Stephen King.  He also adapted "The Martian Chronicles" by Ray Bradbury as a graphic novel for Hill & Wang.

He co-wrote a pilot for Universal Cable Productions and the SyFy channel and is currently writing two projects for Dark Horse Comics that he will illustrate.

He was nominated for the Harvey, an industry award recognizing excellence in comics, and has been recognized by the Society of Illustrators.